bitrat | e386c831df697e516fedcab1ad8a879ae057a5f4f321a873dcd31e9c6760009e

Analysis

max time kernel
149s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
02/08/2021, 00:02

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General

Target
41965FC5D071CE4B42BBA9B7C486F784.exe
Size 4.9MB
Sample210802-x4akf41xcj
SHA256 e386c831df697e516fedcab1ad8a879ae057a5f4f321a873dcd31e9c6760009e
MD5 41965fc5d071ce4b42bba9b7c486f784
SHA1 e1c90feba42abe5c4ae88d86ae75e021f55afb0b
SHA512 7ccc5337e0ef03eec69d950af1bf698a53f324e176a8fd05cfb4dc978774663de60637f10f00db4976596867612889d335a7b2b4ffa0a3caf68354c34d4515d9
MD5 SHA1 SHA512

Score

10^/10

bitrat trojan

Malware Config

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat

BitRAT Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3984-152-0x000000000068A488-mapping.dmp	family_bitrat
behavioral2/memory/3984-150-0x0000000000400000-0x00000000007CE000-memory.dmp	family_bitrat
behavioral2/memory/3984-160-0x0000000000400000-0x00000000007CE000-memory.dmp	family_bitrat

Executes dropped EXE 4 IoCs

pid	Process
2060	System.pif
2684	BF1PureCracker0.exe
2300	RegAsm.exe
3984	RegAsm.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

pid	Process
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe
3984	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2060 set thread context of 3984	2060	System.pif	87

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	System.pif

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2060	System.pif
2060	System.pif
2060	System.pif
2060	System.pif
2060	System.pif
2060	System.pif
1168	powershell.exe
1168	powershell.exe
1168	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2060	System.pif
Token: SeDebugPrivilege	1168	powershell.exe
Token: SeShutdownPrivilege	3984	RegAsm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3984	RegAsm.exe
3984	RegAsm.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 2060	3156	41965FC5D071CE4B42BBA9B7C486F784.exe	75
PID 3156 wrote to memory of 2060	3156	41965FC5D071CE4B42BBA9B7C486F784.exe	75
PID 3156 wrote to memory of 2060	3156	41965FC5D071CE4B42BBA9B7C486F784.exe	75
PID 3156 wrote to memory of 2684	3156	41965FC5D071CE4B42BBA9B7C486F784.exe	78
PID 3156 wrote to memory of 2684	3156	41965FC5D071CE4B42BBA9B7C486F784.exe	78
PID 2060 wrote to memory of 1308	2060	System.pif	83
PID 2060 wrote to memory of 1308	2060	System.pif	83
PID 2060 wrote to memory of 1308	2060	System.pif	83
PID 1308 wrote to memory of 1168	1308	WScript.exe	84
PID 1308 wrote to memory of 1168	1308	WScript.exe	84
PID 1308 wrote to memory of 1168	1308	WScript.exe	84
PID 2060 wrote to memory of 2300	2060	System.pif	86
PID 2060 wrote to memory of 2300	2060	System.pif	86
PID 2060 wrote to memory of 2300	2060	System.pif	86
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87
PID 2060 wrote to memory of 3984	2060	System.pif	87

C:\Users\Admin\AppData\Local\Temp\41965FC5D071CE4B42BBA9B7C486F784.exe
"C:\Users\Admin\AppData\Local\Temp\41965FC5D071CE4B42BBA9B7C486F784.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Users\Admin\AppData\Local\Origin\Install\Setup\Battlefield1\ErrorAssistant\System.pif
  "C:\Users\Admin\AppData\Local\Origin\Install\Setup\Battlefield1\ErrorAssistant\System.pif"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2060
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Nakikvvyglg.vbs"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1308
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\NVIDIA\nvcontainer.exe'
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1168
- - C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    3⤵
    - Executes dropped EXE
    PID:2300
- - C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3984
- C:\Users\Admin\AppData\Local\Origin\Install\Setup\Battlefield1\ErrorAssistant\BF1PureCracker0.exe
  "C:\Users\Admin\AppData\Local\Origin\Install\Setup\Battlefield1\ErrorAssistant\BF1PureCracker0.exe"
  2⤵
  - Executes dropped EXE
  PID:2684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1168-163-0x0000000007A10000-0x0000000007A11000-memory.dmp

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memory/1168-166-0x00000000081E0000-0x00000000081E1000-memory.dmp

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memory/1168-389-0x0000000009380000-0x0000000009381000-memory.dmp

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memory/1168-383-0x0000000009390000-0x0000000009391000-memory.dmp

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memory/1168-190-0x0000000006AE3000-0x0000000006AE4000-memory.dmp

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memory/1168-189-0x000000007E970000-0x000000007E971000-memory.dmp

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memory/1168-188-0x00000000093E0000-0x00000000093E1000-memory.dmp

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memory/1168-187-0x0000000009230000-0x0000000009231000-memory.dmp

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memory/1168-182-0x0000000008EA0000-0x0000000008EA1000-memory.dmp

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memory/1168-175-0x0000000008EC0000-0x0000000008EF3000-memory.dmp

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memory/1168-167-0x0000000008100000-0x0000000008101000-memory.dmp

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memory/1168-165-0x00000000079E0000-0x00000000079E1000-memory.dmp

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memory/1168-164-0x0000000007A80000-0x0000000007A81000-memory.dmp

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memory/1168-162-0x0000000007750000-0x0000000007751000-memory.dmp

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memory/1168-161-0x0000000007070000-0x0000000007071000-memory.dmp

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memory/1168-158-0x0000000007120000-0x0000000007121000-memory.dmp

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memory/1168-159-0x0000000006AE2000-0x0000000006AE3000-memory.dmp

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memory/1168-157-0x0000000006AE0000-0x0000000006AE1000-memory.dmp

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memory/1168-156-0x0000000006990000-0x0000000006991000-memory.dmp

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memory/2060-136-0x0000000005360000-0x0000000005361000-memory.dmp

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memory/2060-138-0x0000000005440000-0x000000000593E000-memory.dmp

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memory/2060-128-0x0000000005370000-0x0000000005371000-memory.dmp

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memory/2060-145-0x0000000005440000-0x000000000593E000-memory.dmp

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memory/2060-139-0x00000000077C0000-0x00000000079C5000-memory.dmp

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memory/2060-126-0x0000000005940000-0x0000000005941000-memory.dmp

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memory/2060-122-0x0000000000850000-0x0000000000851000-memory.dmp

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memory/2060-144-0x0000000002D50000-0x0000000002DB6000-memory.dmp

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memory/2684-137-0x000001AD3ED10000-0x000001AD3ED12000-memory.dmp

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memory/2684-130-0x000001AD24BA0000-0x000001AD24BA1000-memory.dmp

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memory/2684-127-0x000001AD249C0000-0x000001AD249D4000-memory.dmp

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memory/2684-124-0x000001AD24760000-0x000001AD24761000-memory.dmp

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memory/2684-135-0x000001AD24B60000-0x000001AD24B61000-memory.dmp

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memory/2684-133-0x000001AD3EBF0000-0x000001AD3EBF1000-memory.dmp

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memory/2684-131-0x000001AD24A00000-0x000001AD24A01000-memory.dmp

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memory/3984-160-0x0000000000400000-0x00000000007CE000-memory.dmp

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memory/3984-150-0x0000000000400000-0x00000000007CE000-memory.dmp

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